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yanalaym [24]
3 years ago
13

Why is it beneficial for a leech to be able to store blood for months and release it slowly?

Biology
1 answer:
Dominik [7]3 years ago
4 0
The reasons are:
- the blood is very low on nutrition
- the leech is not feeding itself regularly

The leech slows it metabolism a lot, so it can survive on very low nutrition. The blood is very low on nutrition, and it is the leech's food source, so the evolution made it preserve energy.

The leach doesn't have the opportunity to feed itself on regular basis, so it takes maximum advantage of any opportunity and consumes as much blood as possible so that it can survive long term when it will not have food at disposal.
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madam [21]

Answer:

The correct answer is - c. Larger claws would help the crab crack open the shells of the mussels so the crab can eat them.

Explanation:

The graph (attached) states that the two variables size of claws of the crabs depends on the thickness of the shell of mussels. With the increase in the thickness of the shell of the mussels the size of the claws of crabs also increases and becomes larger.

The most likely explanation of this change would be adapting according to the change in the shell of the crab as they require to crack their shell to eat them as mussels are the primary food source of these crabs.

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Answer:

A

Explanation:

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Proteins that are membrane embedded are conveyed to the plasma membrane (integral membrane proteins) by constitutive secretion. Proteins can divert from constitutive secretion pathway and be targeted towards other destinations such as lysosomes (as lysosomal proteins) and regulated secretion from cells (to the cell exterior).

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